在整个欧亚大草原,基于Stipa的植物群落的分布和放牧价值的预测变化
Ya Tu1, Yuanjun Zhu2, Xiaohui Yang2
1Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China; Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing 100091, China; School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China.
Journal of environmental management
|March 27, 2024
概括
气候变化对欧亚大草原放牧价值的影响在不同地区不同. 虽然西藏高山和中亚的草原可能会增加放牧潜力,但黑海-哈萨克斯坦地区的变化很小,这突显了物种特征对可持续管理的重要性.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 植物学 植物学
背景情况:
- 欧亚大草原是一个巨大的草原生态系统,对全球畜牧放牧至关重要,但面临着气候变化和不可持续的土地利用的威胁.
- 草种在欧亚大陆的草原草原中占主导地位,在生态系统健康和放牧价值方面发挥着至关重要的作用.
研究的目的:
- 预测欧亚主要草原次区域中Stipa占主导地位的植物群落的当前和未来分布.
- 评估气候变化如何改变西藏阿尔卑斯山,中亚和黑海-哈萨克斯坦次区域中占主导地位的Stipa物种的放牧价值.
主要方法:
- 组合建模用于预测未来气候场景下的植物社区分布.
- 基于特征的评估评估了22种Stipa物种的放牧价值,整合了环境变量和气候变化预测.
主要成果:
- 气候变化对牧场价值的影响在三个研究的次区域中差异很大.
- 预计在西藏高山草原和中亚地区的牧场价值将有所增加,在黑海-哈萨克斯坦地区的变化可以忽略不计.
- 观察到特定物种对气候变化的反应,受环境变量和固有的基于特征的特征的影响.
结论:
- 基于特征的Stipa物种特征是区域放牧价值及其未来变化的关键决定因素.
- 了解物种对气候变化的具体反应对于欧亚大草原生态系统的可持续管理至关重要.
- 该研究提供了关键的见解,以适应放牧实践在各种草原景观的预测气候变化.
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